Count Max Value in DataTable(DataGrid)

if you want to get a maximum column number in a DataTable you can use below code:

 int maxValue;
        DataTable dtb = new DataTable();

        // some code here

        void M()
        {
            if (dtb.Columns.Count > 0)
            {
                maxValue = dtb.Columns.Count;
            }
            else
            {
                maxValue = 0;
            }
        }